the role of carbonate-fluoride melt immiscibility in shallow ree deposit evolution论文.pdf

Geoscience Frontiers 10 (2019) 527e537
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China University of Geosciences (Beijing)
Geoscience Frontiers
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Research Paper
The role of carbonate-fluoride melt immiscibility in shallow REE deposit
evolution
Jindrich Kynicky a,b,*, Martin P. Smith c, Wenlei Song b, Anton R. Chakhmouradian d, Cheng Xu e,
Antonin Kopriva b, Michaela Vasinova Galiova b, Martin Brtnicky b
a Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
b Brno University of Technology, Technicka 3058/10, 616 00 Brno, Czech Republic
c University of Brighton, Brighton BN2 4GJ, United Kingdom
d University of Manitoba, Winnipeg, Manitoba, Canada
e School of Earth and Space Sciences, Peking University, Beijing 100871, China
article info abstract
Article history: The Lugiin Gol nepheline syenite intrusion, Mongolia, hosts a range of carbonatite dikes mineralized in
Received 5 August 2017 rare-earth elements (REE). Both carbonatites and nepheline syenite-fluorite-calcite veinlets are host to
Received in revised form a previously unreported macroscale texture involving pseudo-graphic intergrowths of fluorite and
11 December 2017
calcite. The inclusions within calcite occur as either pure fluorite, with associated REE minerals within
Accepted 7 February 2018
the surrounding calcite, or as mixed calcite-fluorite inclusions, with associated zirconosilicate min-
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